(7R,10E,12aR,13R,16aS)-7-[(1R)-1-(benzyloxy)ethyl]-2,3,6,7,12a,13,14,15,16,16a-decahydro-13,16a-dimethyl-5H-1,4,8-benzotrioxacyclotetradecine-5,9(12H)-dione 在
molecular sieve 、
2,3-二氯-5,6-二氰基-1,4-苯醌 作用下,
以
二氯甲烷 为溶剂,
反应 24.0h,
以68%的产率得到(7R,10E,12aR,13R,16aS)-7-[(1R)-1-hydroxyethyl]-2,3,6,7,12a,13,14,15,16,16a-decahydro-13,16a-dimethyl-5H-1,4,8-trioxabenzocyclotetradecine-5,9(12H)-dione